The Sesame Service queries several databases from the name of
an astronomical object (outside the Solar System bodies), and displays some
fundamental parameters (type of object, J2000 position).
The databases queried are Simbad, NED, and VizieR.
(For more explanations, see the Documentation).

The validity of astronomical object names
may be checked directly on a LaTeX manuscript
provided the objects are marked by the \object or
\objectname macro (available in the LaTeX style files
for publication in A&A, ApJ, AJ and PASP journals)